GB344718A - - Google Patents
Info
- Publication number
- GB344718A GB344718A GB14592/30A GB1459230A GB344718A GB 344718 A GB344718 A GB 344718A GB 14592/30 A GB14592/30 A GB 14592/30A GB 1459230 A GB1459230 A GB 1459230A GB 344718 A GB344718 A GB 344718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- choke
- circuit
- anode
- battery
- anode current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/08—Amplitude modulation by means of variable impedance element
- H03C1/10—Amplitude modulation by means of variable impedance element the element being a current-dependent inductor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Abstract
344,718. Wireless transmitting systems. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. May 12, 1930, No. 14592. Convention date, Oct. 25, 1929. [Class 40 (v).] In a modulating system employing a choke in the aerial circuit and a choke in a compensating circuit, the two chokes Dr1 and Dr2, Figs. 2 and 3, are arranged in series in the anode circuit of a valve R3 supplied with the modulating currents in such a way that their preliminary magnetizations are in opposite directions and are altered in the opposite sense by fluctuations in the anode current. In one arrangement, Fig. 2, the steady anode current from battery B passes through the chokes, and choke Dr2 is given a preliminary magnetization of opposite sign to that of choke Dr1 by means of an auxiliary battery H through a low-frequency choke N1. In a modification, Fig. 3, the steady anode current passes only through choke Dr1, the d.c. circuit being completed through choke N1 and the anode battery B, which also magnetizes the choke Dr2 through a potential divider P and series resistance R, while a capacity C is connected between the choke and the valve cathode. Specification 316,946, [Class 40 (v), Wireless signalling &c.], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL76554D DE509614C (en) | 1929-10-25 | 1929-10-25 | Modulation device for transmitter arrangements with ballast circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB344718A true GB344718A (en) | 1931-03-12 |
Family
ID=6253940
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14592/30A Expired GB344718A (en) | 1929-10-25 | 1930-05-12 | |
| GB19402/30A Expired GB344747A (en) | 1929-10-25 | 1930-06-25 | Improvements in modulating arrangements for high frequency transmitters |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19402/30A Expired GB344747A (en) | 1929-10-25 | 1930-06-25 | Improvements in modulating arrangements for high frequency transmitters |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE509614C (en) |
| FR (1) | FR695853A (en) |
| GB (2) | GB344718A (en) |
-
1929
- 1929-10-25 DE DEL76554D patent/DE509614C/en not_active Expired
-
1930
- 1930-05-12 GB GB14592/30A patent/GB344718A/en not_active Expired
- 1930-05-19 FR FR695853D patent/FR695853A/en not_active Expired
- 1930-06-25 GB GB19402/30A patent/GB344747A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB344747A (en) | 1931-03-12 |
| DE509614C (en) | 1930-10-10 |
| FR695853A (en) | 1930-12-23 |
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